solve- (x2- 2√5+3) and find the value of X=?
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x=√5+√2 or √5-√2
Step-by-step explanation:
d=b2-4ac
=(-2√5)2-4(1)(3)
=20-12
=8
x=-b+-√d/2a
=-(-2√5)+-√8/2
=2√5+-2√2/2
x=2√5+2√2/2 or 2√5-2√2/2
x=2(√5+√2)/2 or 2(√5-√2)/2
x=√5+√2 or √5-√2
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